01Online tutoring works: Experimental
evidence from a program with vulnerable childrenLucas Gortazar, Claudia Hupkau, Antonio
Roldán-MonésAbstract：We provide evidence from a randomized controlled
trial on the effectiveness of a novel, 100-percent online math tutoring
program, targeted at secondary school students from highly disadvantaged
neighborhoods. The intensive, eight-week-long program was delivered in groups
of two students during after-school hours, mostly by qualified math teachers.
The intervention significantly increased standardized test scores (+0.26 SD)
and end-of-year math grades (+0.49 SD), while reducing the probability of
repeating the school year. The intervention also raised aspirations, as well as
self-reported effort at school. The two-on-one design allows us to
significantly reduce costs and improve scalability, while showing similar
results as one-on-one tutoring programs.02A toolkit for setting and evaluating price
floorsCarlos Eduardo Hernández, Santiago
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